Bioterrorism Agents/Diseases
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Category A
Definition
The U.S. public health system and primary healthcare providers must be prepared to address various biological agents, including pathogens that are rarely seen in the United States. High-priority agents include organisms that pose a risk to national security because they
- can be easily disseminated or transmitted from person to person;
- result in high mortality rates and have the potential for major public health impact;
- might cause public panic and social disruption; and
- require special action for public health preparedness.
Agents/Diseases
- Anthrax (Bacillus anthracis)
- Botulism (Clostridium botulinum toxin)
- Plague (Yersinia pestis)
- Smallpox (variola major)
- Tularemia (Francisella tularensis)
- Viral hemorrhagic fevers, including
- Filoviruses (Ebola, Marburg)
- Arenaviruses (Lassa, Machupo)
Category B
Definition
Second highest priority agents include those that
- are moderately easy to disseminate;
- result in moderate morbidity rates and low mortality rates; and
- require specific enhancements of CDC’s diagnostic capacity and enhanced disease surveillance.
Agents/Diseases
- Brucellosis (Brucella species)
- Epsilon toxin of Clostridium perfringens
- Food safety threats (Salmonella species, Escherichia coli O157:H7, Shigella)
- Glanders (Burkholderia mallei)
- Melioidosis (Burkholderia pseudomallei)
- Psittacosis (Chlamydia psittaci)
- Q fever (Coxiella burnetii)
- Ricin toxin from Ricinus communis (castor beans)
- Staphylococcal enterotoxin B
- Typhus fever (Rickettsia prowazekii)
- Viral encephalitis (alphaviruses, such as eastern equine encephalitis, Venezuelan equine encephalitis, and western equine encephalitis])
- Water safety threats (Vibrio cholerae, Cryptosporidium parvum)
Category C
Definition
Third highest priority agents include emerging pathogens that could be engineered for mass dissemination in the future because of
- availability;
- ease of production and dissemination; and
- potential for high morbidity and mortality rates and major health impact.
Agents
- Emerging infectious diseases such as Nipah virus and hantavirus
- Page last reviewed: August 17, 2017
- Page last updated: August 17, 2017
- Content source: National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
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